2026 Cadillac CT5 — Full Specifications
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The 2026 Cadillac CT5 is a saloon/sedan offered with 3 engines (2L 4-cyl turbo, 3L 6-cyl turbo, 6.2L 8-cyl supercharged). Its most fuel-efficient configuration returns around 31 mpg (UK) / 26 mpg (US EPA) combined, with 18–31 mpg (UK) across all configurations. Owners often keep a Cadillac CT5 workshop manual to hand for servicing and repairs.
Compared with the 2025 Cadillac CT5: Fuel economy is essentially unchanged at around 31 mpg (UK) combined. The engine line-up listed by EPA is unchanged. It carries the same 5★ overall NHTSA rating.
Full Specifications
| Engine (most efficient) | 2L 4-cyl turbo |
|---|---|
| Engine options | 2L 4-cyl turbo · 3L 6-cyl turbo · 6.2L 8-cyl supercharged |
| Transmission (most efficient) | Automatic (S10) |
| Fuel Type | Premium Gasoline |
| Powertrain | Conventional |
| Drive | Rear-Wheel Drive |
| Body Style | Saloon/Sedan |
| Passenger Volume (EPA) | 99 cu ft (2,803 L) |
| Luggage Volume (EPA) | 11 cu ft (311 L) |
| Fuel Economy (UK) | 31 combined / 26 urban / 37 extra-urban mpg |
| Fuel Economy (US EPA) | 26 combined / 22 city / 31 highway mpg |
| CO₂ Emissions | 215 g/km |
| EPA Greenhouse Gas Score | 4 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $3,150 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 6 configurations for the 2026 Cadillac CT5 across 3 engines (2L 4-cyl turbo, 3L 6-cyl turbo, 6.2L 8-cyl supercharged). Combined fuel economy ranges from 15 to 26 mpg (US), or 18 to 31 mpg (UK), depending on engine, transmission and drive. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| 2L 4-cyl turbo | Automatic (S10) | All-Wheel Drive | 29 | 24 (21/30) | 230 | $3,400 |
| 2L 4-cyl turbo | Automatic (S10) | Rear-Wheel Drive | 31 | 26 (22/31) | 215 | $3,150 |
| 3L 6-cyl turbo | Automatic (S10) | All-Wheel Drive | 25 | 21 (18/27) | 260 | $3,900 |
| 3L 6-cyl turbo | Automatic (S10) | Rear-Wheel Drive | 26 | 22 (19/28) | 248 | $3,750 |
| 6.2L 8-cyl supercharged | Automatic (S10) | Rear-Wheel Drive | 18 | 15 (13/20) | 360 | $5,500 |
| 6.2L 8-cyl supercharged | Manual 6-spd | Rear-Wheel Drive | 18 | 15 (13/20) | 365 | $5,500 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
EPA measures interior passenger volume at 99 cubic feet (about 2,803 litres) and luggage volume at 11 cubic feet (about 311 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2026 Cadillac CT5
Running Costs: 2026 Cadillac CT5
Covering around 8,000 miles a year in a 2026 Cadillac CT5 at 31 mpg combined, expect roughly 1,173 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $3,150 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
Only need this car occasionally? See our buy vs rent comparison.
2026 Cadillac CT5 Safety Ratings (NHTSA)
Recalls & Owner Complaints (NHTSA)
NHTSA lists no safety recall campaigns for the 2026 Cadillac CT5 as of 6 October 2026. Recalls can be issued years after a model is sold, so it is still worth checking your own VIN.
Owners have filed 6 complaints with NHTSA about the 2026 Cadillac CT5. The most-reported areas are Forward collision avoidance (4), Service brakes (2), Vehicle speed control (2). Complaints include 2 reported crashes. That is well below the median of 11 complaints across the 7 Cadillac CT5 model years in our data.
Used-buyer checklist for the 2026 Cadillac CT5
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Driver-assist sensors (4 owner complaints) — Check that driver-assist warning lights are off and sensors are clean and undamaged.
- Brakes (2 owner complaints) — Brake firmly from speed and look for pulling, vibration or a soft pedal; ask for brake service history.
- Throttle & cruise control (2 owner complaints) — Check throttle response and cruise control are smooth, and ask about any software or throttle recalls.
- Electrical system (1 owner complaint) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.
How It Compares
Cadillac models in our database average about 27 mpg (UK) combined on their most efficient configuration; the 2026 Cadillac CT5's 31 mpg is 4 mpg above that make average. Its 215 g/km CO₂ figure is 33 g/km lower than the 248 g/km Cadillac average.
Of the 7 Cadillac CT5 model years we cover, the 2026 ranks 4th for combined fuel economy on its best configuration (31 mpg UK combined, against a high of 32 mpg). See every Cadillac CT5 year side by side.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026
Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.
Recommended Accessories for the 2026 Cadillac CT5
Frequently Asked Questions
What engine does the 2026 Cadillac CT5 have?
EPA lists 3 engines for the 2026 Cadillac CT5: 2L 4-cyl turbo, 3L 6-cyl turbo, 6.2L 8-cyl supercharged. The most fuel-efficient configuration pairs the 2L 4-cyl turbo with a automatic (s10).
What is the fuel economy of the 2026 Cadillac CT5?
The most efficient configuration returns around 31 mpg (UK) combined, or 26 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 18 to 31 mpg.
How much does the 2026 Cadillac CT5 cost to fuel per year?
The US EPA estimates about $3,150 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.
Does the 2026 Cadillac CT5 have a good safety rating?
It holds an overall NHTSA rating of 5 stars, with 5 stars for frontal crash protection.
Does the 2026 Cadillac CT5 have any recalls?
NHTSA lists no safety recall campaigns for the 2026 Cadillac CT5 as of 6 October 2026. Recalls can be issued years after a model is sold, so it is still worth checking your own VIN.
What are the most common problems reported for the 2026 Cadillac CT5?
Among the 6 owner complaints filed with NHTSA, the most-reported areas are Forward collision avoidance (4 complaints), Service brakes (2 complaints), Vehicle speed control (2 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
How much interior and luggage space does the 2026 Cadillac CT5 have?
EPA measures interior passenger volume at 99 cubic feet (about 2,803 litres) and luggage volume at 11 cubic feet (about 311 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.